KSP_NORM_NONE#

Do not compute a norm during the Krylov process. This will possibly save some computation but means the convergence test cannot be based on a norm of a residual etc.

Note#

Some Krylov methods need to compute a residual norm (such as KPSGMRES) and then this option is ignored

See Also#

KSP: Linear System Solvers, KSPNormType, KSP, KSPSetNormType(), KSP_NORM_PRECONDITIONED, KSP_NORM_UNPRECONDITIONED, KSP_NORM_NATURAL

Level#

advanced

Location#

include/petscksp.h

Examples#

src/ksp/ksp/tutorials/ex71.c


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Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages